212 



PKOCEEDINGS or THE GEOLOGICAL SOCIETY. 



[Feb. 8, 



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every respect the beds which are 

 so well developed on the same 

 horizon in the Isle of "Wight; and 

 the following fossils are recorded 

 from them by Dr. Pitton. 



Cypridea tuberculata, Sow., sp. 



■ valdensis, /Sow., sp. 



Melanopsis attenuata, Sow., sp. 



tricarinata, How., sp. 



Cyrena media, Soio., sp. 



membranacea. Sow., sp. 



Cardium ?, sp. 

 Ostrea, sp. 



These beds have been re- 

 garded by some geologists as the 

 greatly attenuated representa- 

 tive of the Weald Clay. 



B. A series of more or less fer- 

 ruginous sands passing "down- 

 wards into interlaminated sands 

 and clays with some seams of 

 lignite, and containing in its 

 middle portion several bands of 

 ferrugineo- calcareous rock,with 

 oysters and other marine shells. 

 This series of beds, which is 

 about 153 feet thick, greatly re- 

 sembles, in many of its cha- 

 racters, portions of the Bagshot 

 series and of the Northampton 

 Sand. It was in these beds that 

 Professor John Phillips obtained 

 the fossil fruit which he de- 

 scribed before this Society in 

 1858 *. 



The oyster-heds cannot be 

 conveniently examined in situ, 

 as they are exposed in a very 

 inaccessible part of the cliff ; but 

 facilities for collecting their 

 fossils are aiforded by the great 

 slipped masses which lie lower 

 down and nearer the shore. 

 They consist of sandy iron- 

 stones, in places becoming cal- 

 careous from the abundance 

 of oysters and other shells, and 

 appear to be very irregular in 



* Quart. Journ. Geol. Soc. vol. xt. 

 p. 46. 



